Magnetic Pulley operates as head pulley on belt conveyors. These low cost, self-cleaning magnets remove tramp iron and purify materials conveyed in bulk forms. When material carried on a conveyor enters the magnetic field surrounding a magnetic pulley, pieces of ferrous metal in the material are attracted to the belt. They are held magnetically against the belt until carried to the underside of the pulley, where the belt takes them away from the magnetic filed to be discharged. Non-magnetic material falls away from the pulley in a normal trajectory. Separation is automatic and continues. These are used metal, elements ferrous contaminant from product; remove steel from recyclable, in mining ores, and removes steel from recyclable, in many applications, its possible to replace an existing head pulley with a magnetic pulley on a size for size basis